Radiator-section.



H. KURTZNBR.

RADIATOR SI'IG'IIOII.l I APPLOATION FILED SEPT. 2, 1911.

Ll l Patented Feb. 3', 19M.

- left hand end showing an enlargement. or

shoulder having multiple flat sides arranged in semi-hexagon order while the enlarged shoulder at the right hand end has-its multiple flat sides arranged in semi-square order. Figs. 9. and 3 are end elevations4 of the left and right hand edges respectively of the plate of Fig. l. Fig. 4 is a front elevation of portions of an assembled group of plates having the hexagon form of enlarged end shoulders, the bare edges of some of the plates being shown, while others are covered by the solder (shown by dots) which is used to bind the plates together and to tightly seal the edges of the vertical water spaces.

Fig. 5 is a similar view of portions of an.

assembled group of plates having square end shoulders. Fig. 6 is a vert-ical transverse section through the tubular portions of a group of plates the section b eing taken on the line 6, 6 of Fig. l. Fig. 7 is a similar section through the intermediate enlargements or Contact ribs of the tubes, the section bein on the line T, 7 of Fig. 1. Fig. 8 is a modi ication showing multiple sided end shoulders arranged in rectangular order, thereby 'admitting of a wider spacing of the tubes and increased widths of the vertical water passages.

The sheet-metal plates are formed with transverse semi-cylindrical corrugations or half tubes, which at their ends are enlarged to form shoulders Q or 3, having multiple sides of such geometrical dispositions as will admit of their lying, when assembled, back to back in close surface contact with the sides of corresponding shoulders on the next adjacent plates` leaving practically no intervening open spaces between them and having a double thickness of the sheet metal entirely around each completed end opening of. the tubes as sliown in Figs. 4 to 8. These enlargements practically form' continuous shoulders along the edges of each plate.

Each corrugat-ion forms one halt of a complete cylindrical air tube and each end shoulder one half of the proposed geometrical outline of the end opening. Each plate is so formed that. the edges of its corrugations are connected longitudinally by slight bends 4 while its end shoulders are similarly eonnected by'bends 5 which double back the wall sections 6 oftwo adjacent shoulders thereby forming va double thickness of metal in these intermediate sides', such sides, in a single plate, being only half the length of the full sidev ot the completed geometrical figure formed by a pair of plates symmetrically assemblcd face to face and in Contact along the eonvexities 4 and'.

The corrngations are formed with one or more intermediate enlargements -or ribs 9, which project above the plane of the convex outer sides of the corrugations and, when assembled. contact with similar ribs on the next adjacent plates, whereby the tubes are supported one by another on lines of support extending through the center ofthe radiator.

The pairs 'of plates are preferably assembled unsyinmetrically. back to back, the tubes of adjacent pairs being staggered and the rertieally disposed water passages between them thus made. tortuous, and of alternately expanding and contracting widths, as atl 7 and 8 respectively. The convexed back sides of the tubes are held out of contact to form these water passages by means of the enlarged shoulders 9, 3 or 10 at their ends andv the intermediate ribs 7 which contact with similar shoulders and ribs of the adjacent plates.

The enlarged end shoulders of the tubes are formed with multiple flat sides so. eometrically disposed that. when assem led the shoulders will lie in flat surface Contact on every side with the shoulders of adjacent plates and with practically no intervening open spaces between adjacent shoulders. In consequence of this there is a double tlucl-zness of sheet metal around every side of every opening in the faces of the radiator,

and the sheetdmetal of the plates extends to these faces and completely fills the cnt-ire space'on each face except thatI which is left open for the air passage..

ln order to have the flat. sides of the shoulders meet in surface contact on every side with similar sides of other shoulders the sides must be disposed in such geometrical order as will admit of the1r be1ng grouped or assembled'in this manner. For this pur' pose the hexagon formation 2. shown at. the lett end of Fig. 1 and in Figs. 2, 4. 5,

6 and 7. kis considered preferable, but they may be made in square Vforms 3 as shown at the right end of Fig. l and by Figs. 3 and 5. or even rect-angular as shown at 10 in Fig. 8.

If desired the shoulders of the vtubes may be of the same :formation at both ends or they may be differently shaped at opposite ends as shown in Fig. 1. Thishaving dilt'erently shaped openings on 'oppositefaces of the radiator is advantageous. in trade, in that the two `forms to be conspicuously displayed in front, as in an automobile radiator.

The rectangular formation 9 ot Fig. 8 permits of greater spacing between the ontsides of the tubes and consequently greater width ofthe vertical water passages.

Having thus described the invention what is claimed as new and useful is: l

l. A section for radiators composed of a number of independently formed sh-eetmetal plates each of which extends from the top to the bottom of the radiator section and is formed with transverse semi-cylindrical corrugations which have slight enlargements at their ends that are 'formed with multipleflat sides and constitute continuous-shoulders along the edges of the plate, said plates being symmetrically assembled in pairs, face to face, so as to form substantially cylindrical horizontal air passages through the radiator, and the pairs being unsymmetrically assembled so as to form tortuous vertically disposed water passages of expanding and contracting width between the outer surfaces of the plates which are held apart for the formation of these water passages by means of said enlarged shoulders, said shoulders having such regular geometrical formation that their outer dat sides will lie in surface contact with the flat side-s of the shoulders on the next adjacent plates with practically no intervening open spaces between them, the edges of the 'shoulders andhence also the plates being bound together by solder.

2. A section for radiators composed of a number of independently formed sheetmetal plates each of which is transversely corrugated the corrugations having slight enlargements at, their ends which enlargements form continuous shoulders along the edges of the plate and transverse enlargements of the corrugations intermediate their ends, said plates being assembled in pairs face to face to form horizontally disposed air passages through the radiator and the pairs -being assembled back to back form vertically disposed water passages between the outer surfaces of the plates which are held apart for the formation of these water passages by means of said enlarged shoulders and intermediate enlargements of the corrugations which contact with corresponding shoulders and enlargements of the next adjacent plates, the edges of the shoulders and hence the plates being bound together by solder.

3. section for radiators composed of a number "of independently formed sheetmetal plates each of which extends from the top to the bottoni of the radiator section and is formed with transverse semi-cylindrical. corrugations which .have slight enlargements at their'ends that are formedv with multiple flat sides and constitutey continuous shoulders along the edges of the plate the corrugations having also transverse enlargements intermediate their ends, said plates being symmetrically asse bled in pairs, face to face, so as to form ubstntially cylindrical air passages throtigh the radiator and the pairs being unsymmetrically assembled so as to form' tortuous, vertically disposed water passagesv of expanding and contracting widths between the conedges of the shoulders and hence also the plates being bound together by solder.

'4. A radiator section composed of a plu.- rality of independently formed thin metal plates,.each of which is formed with transverse concavo'- convex corrugations which are all faced in the same direction and are serially united by integral sharply bent-back parts of the metaL/all of said corrugations being slightly enlarged at both ends to form continuous shoulders along both 'edges of the. plate., each of said enlargements forming one-half of a regular flat-sided geometrical gure. and each of said one-half figures having aseach of its end members a part which forms one-half of one side of-the whole geometrical figure, and each of Said halfside end members being integrally connected with the4 corresponding part of the enlarged shoulder of adjacent corrugations by a sharply bent back partpf the met-al, such plates being arranged substantially as shown to face alternately in opposite direction, the two adjacent plates which face one ano-ther being arranged so that the sharply bent back connect-ions between adjacent corrugations on said plates will bealined and will be in substantial contact,- 'i 110 l and adjacent plates which lie back to back. being arranged soA that said sharply bent back connecting parts of the metal will be in staggered relation, and so that the outer surfaces of the complete flat sides of the several enlargements or shoulders shall be in' full surface Contact with-the flat sides of the enlargements or shoulders of the adjacent plate which is backed up against it,'

and the edges of thel shoulders, and hence 1.29-

also of the plates, being bound together by solder. i

5. A radiator section composed of a plulos rality of independently formed thin metal plates, eachv of which is formed With transl 'i I' verse concavo-convex corrugations which are all faced in the same direction and aretserially united by `integral sharply bent-back parts of the metal, all of said corrugations being slightly enlarged at both ends to form Acontinuous shoulders along both edges of Loeebei.

the plate, each of said enlargements forming onehalf of a regular flat-sided eoinetrical figure, 'and each of said onealf figures having as each of its end members ay part which forms one-half of one side of the whole geometrical ligure, and eaeh of said half-side end members being integrally connected with the corresponding partof the enlarged shoulder of adjacent wrrugations by a sharply bent back part of the metah-said plates being arranged substantially as shown so that the corrugations on alternate plates face in opposite directions, and so that the contiguous plates which lie back to back have their corrugations set in staggered relation and the flat sides of their enlarged shoulders in sul'istantially complete surface contact with practically no interreliing .space between tliem..and so that the adjacent plates which face one another aie arranged with the bent back metal connections between corrugations in alineinent and in substantial c0ntact,-the edges of the shoulders and hence of the plates being con` neeted by solder.

6. A section for radiattrs composed of a number of independentlyr formed sheetinetal plates each of which is transversely corrugated, the corrugations having slight enlargements at their ends. which enlargel ments form continuous shoulders along the edges of the plates, said plates being assembled in pairs face tn face to form horizontally disposed air passages through the radiator and the pairs being assembled back to back to form vertically disposed water passages between the outer surfaces of the y plates which are held apart for the forina- 5 tion of these water passages by means ofi said enlarged shoulders of the eorrugations 7. A section for radiators composed of a, 46

number of independently formed sheetinetal plates. each of which extends from the top to theI bottom ot' the radiator section and is formed with transverse semie \'lindrieal eorrugations w li have slight 5b enlargements atV their endsl that are'formed with multiple fiat sides and eonstituteeontinuous shoulders along the edges of the plate. said plates bein;r .symmetrically assembled iii pairs. fai-e to face, so as to form .substantially cylindrical air passages through the radiator and the pairs being unsyminet-ricall assembled so as to form tortuous, vertically disposed water passages of expanding and eontracting widths between the convex outer surfaces of the plates which are held apart for the formation ot' these water passages by means of-said enlarged shoulders ot the eorrugations which contact with eorrespoiuling shoulders on the next adjacent. plates. said shoulders having sueh regular geon'ietrieal formation that their outer flat sides will lie in -surface Contact with the tlat .sides of the shoulders on the next adjacent plates with practically no iii-40 terrening open spaces between them, the edges of the shoulders and hence also the plates being bound together by solder.

ln testimony whereof, I hereunto atlix my* l signature in the presence of two Witnesses.

HUGO KURTZNER.

il'itnesses1 WM. A. Sammie, H. L. Dawson. 

